Metal clad siding panels



Jan. 21, 1,958 1 ;J. NEWT-ON 2,820,257

. METAL CLAD SIDING PANELs 'Filed sept. 19, 1955 un 7 7 nl \\\\\\\S United States Paten METAL CLAD SIDING PANELS Leslie J. Newton, Baie dUrfe, Quebec, Canada, assignor to Building Products Limited, Montreal, Quebec, Canada Application September 19, 1955, Serial No. 535,208

12 claims. (Cl. zo-s) This invention relates to metallic covered siding panels and particularly to a metallic covering which is tted on the surface of an insulating siding panel and is locked thereon in weather-tight seal without the use of nails or other separate fastenings.

The invention consists essentially in forming the horizontal edges of the metallic covering of the siding panel that they lock in prepared recesses of the siding panel and with one another as the succeeding course one above the other is laid.

There have been many attempts t-o provide a metallic sheathing for walls in order to give greater protection against the weather and other hazards. These have all to some extent or another depended on the nailing down of the metal under the weather lap or under a folded joint. Such methods of assembly take considerable time to put together and require pre-punched holes or dedents which may not always be suitably placed to suit the construction of the wall on which the clapboard siding is to be mounted. Furthermore such assemblies are not Aalways fully weatherproof due to the fact that the nails are not always hammered down properly with the result that the siding tends to ride on the nail heads to the detriment of the weather-seal.

ln the present invention the metallic covering `of the siding panel is spring held in recesses in the siding panel at top and bottom edges and is further held in place by the siding panel of the next above course. 'Il-le overlap of the courses of the metallic covering and the siding panels provide two spring pressure weather-tight seals in series together with pressure points indented into the siding panel as further protection.

The object of the invention is to provide a metallic covering which can be installed on a siding panel without the use of nails or other fastening means.

A further object of the invention is to provide a metallic covering for siding panels which is spring held -on the siding panel, the spring action being utilized to provide a weather-seal with the siding in the course next above.

A further object of the invention is to provide a build ing siding in which a metallic covering panel is combined with an insulating siding panel to form a rigid, self-sealing structure having a high insulation value.

A further object Aof the invention is to provide a metallic covering for siding panels which is not held down by nails or other rigid clamp means and is therefore free to expand or contract in -all directions under extreme changes of weather Conditions.

In the drawings which illustrate, embodiments of the invention-.

Fig. 1 is an enlarged vertical section of a portion of a wall structure showing one complete' course o-f` the struc.- ture fitted in place with an upper course of insulating panel backing in, place ready to receive its covering panel.

Fig. 2 is a perspective view of one end of a metallic covering-panel. l

Fig. 3 is an enlarged View of` the joint between two courses of the assembled siding panels with their metallic covering.

Referring to the drawings, the metallic covering 1 is a panel preferably extruded in long length from a sheet 2 of such metal as aluminum and has its lower horizontal edge formed into channel shape at 3 with the short leg 4 of the channel being curved outwardly to form a spring member for the purpose of providing a spring weather seal as hereinafter described. The upper horizontal edge is multi-shaped to provide a horizontal outwardly facing V at 5, the crest 6 of which provides a pressure seal line. Above the V-shaped protrusion 5 the panel is folded outwardly and then backwardly at 7 with a slight gap being left between the two sides of the fold, the fold being directed downwardly at Van angle substantially parallel with the adjacent upper surface of the V-shaped protrusion 3. The outer edge 8 of the fold 5 projecting considerably beyond the crest 6 of the V protrusion. The panel is then folded downwards at 9 in a plane parallel with the body of the sheet 2 Iand spaced outwardly therefrom and is then turned upwards to form the angled leg 10.

The panel rformed as above described acquires considerable rigidity at its horizontal edges and can therefore be made in fairly long lengths of light gauge material.

While one form of metallic covering panel has been described in detail it is to be understood that considerable change in the extruded shape can be allowed without departing from the essence of the invention. For instance the V shape at 5 could be formed of a half circle and still provide the pressure line crest 6, while the portion folded downwards at 9 and turned up at an angle at 1l) could be combined into a single leg spread outwards from the body of the sheet 2.

In the assembly of the above metallic covering panel, a iirst course of a siding panel 11 which may be of any suitable insulating material such as prepared fibre-board or wood having a lower horizontal recess 12 on its rear face and an upper horizontal recess 13 on its outer face is nailed to the vertical stringers 14 with suitable spacers to hold the siding panel 11 at the desired angle to the Stringer 14.

The metallic covering panel 1 is then fitted to the siding panel 11 by first drawing the panel 1 upwards so that its lower channel shape 3 engages with the lower edge of the siding panel 11 and the curved leg d is seated in the recess 12. `The upper portions 9 and 10 of the panelV 1 are then pressed into the horizontal recess 13 in the panel 11 s-o that the panel 1 has three points of contact in the recess 13 at a, b and c, with the main body of the panel 1 lying snug on the surface of the siding panel 11. The next upper course yof siding panel 11 is now nailed in position and can be accurately located by resting the top of the recess 12 on the protruding top edge 8 of the underneath course of covering panel l. While the next upper course of siding panel 11 is being nailed in place by the nails 1S, the folded edge 8 of the panel l will indent itself into the siding panel 11 as clearly shown at d in Fig. 3 of the drawings, which, added to the pressure points n, b and c ensures rigid anchoring of the covering panel 1. This described assembly is as illustrated in the upper portion of Fig. l of the drawings.

The next upper course of siding panel 11 is now fitted in place in the same manner as above described, except that the leg portion 4 of the covering panel 1 has to be sprung past the crest 6 of the V 5, with the upper edge 40 of the leg 4 bearing against the under angled surface of the folded over portion 7. This is accomplished by drawing upwards on the panel ll until the bottorn of the channel portion 3 is solid with the bottom edge of the siding panel 11, the edge 40 of the leg 4 riding up the angled surface 7 until the assembly comes to rest. rl`he top edge of the covering panel 1 is then forced into the upper recess 13 of the siding panel 11 as already described and the process is repeated with each succeeding course.

It will be noted that the leg 4 of the lower portion of the covering panel l is spaced out from the body of the sheet 2 to a greater extent than the thickness of the lower edge of the siding panel. This allows for a certain amount of inaccuracy in the manufacture of the siding panel and also allows for freedom of spring action between the top of one covering panel and the bottom of the next so that there is a pressure seal between the leg 4 and the crest 6 of the V 5 and also a pressure seal between the top edge 4i) of the leg i and the angled surface of the fold over 7, with the pressure at 4@ tending always to increase the pressure at the V.

With a metal clad siding manufactured and assembled as above described the covering panel 1 is held irrnly in place by pressure and no nails are passed through the covering panel. The folded over construction of the top horizontal edge of the covering panel ensures a degree of flexibility which will allow the portions 9 and 1? to be flexed sufficiently to be pressed into the recess 13 of the siding panel 11 should there be any variation in the location of the recess in manufacture. The nails 15 can be driven into the siding panel with a great deal of freedom as to location without damage to the covering panel as the only pressure exerted will be in indenting the edge 8 of the covering panel into the siding panel and increasing the stability of the anchor of the assembly.

As the engagement between the covering panels 1 and the siding panels il is by spring means, the nails 15 passing through the siding panels only and being concealed by the covering panels l, free motion of one panel with respect to the other, as would be caused by expansion due to heat, is allowed for, as the lower end of one covering panel 1 can ride on the pressure crest 6 of the covering panel below, the only resistance to movement being the pressure between the panels at this point.

What l claim is:

l. In a building siding in combination, a wall strueture, a series of laterally extending insulating siding panels secured to said wall structure and in lapped engagement with each other in courses one above the other, said siding panels having longitudinal recesses facing each other within the lapped portion of the panels and located at the bottom edge of the lapped perdons, and a sheet metal covering for each of said siding panels, said metal coverings having their lower horizontal edges hooked ir. the recesses at the bottoms of the panels to form upwardly projecting spring members and having their upper horizontal edges pressed into the recesses at the tops of the panels, the lower edge of one sheet metal covering forming a spring pressure weather seal with the upper portion of the sheet metal covering of the course immediately below when hooked into the recess in the lower edge of its panel.

2. In a building siding in combination, a wall structure, a series of laterally extending insulating siding panels secured to said wall structure and in lapped engagement with each other in courses one above the other, said siding panels having longitudinal recesses facing each other within the lapped portion of the panels, a sheet metal covering for each of said siding panels, said metal coverings having their lower horizontal edges hooked in the recesses at the bottoms of the panels to form upwardly proiecting spring members and having their upper horizontal edges pressed into the recesses at the tops of the panels, the lower portion of the siding panel in the course immediately above locking the top edge of the metal covering in the recess of the siding panel immediately below and the lower edge of one sheet metal covering forming a spring pressure weather seal with the upper portion of the sheet metal covering `of the course (iti immediately below when hooked into the recess in the lower edge of its panel.

3. In a building siding in combination, a wall structure, a series of laterally extending insulating siding panels secured to said wall structure and in lapped en'-` gagement with each other in courses one above the other, said siding panels having an outwardly facing horizontal recess located above the lower edge of the lap of the panels with each other and a rearwardly facing horizontal recess at the lower edge of the panel, said recesses in the lapped panels forming a communicating pocket with each other, a sheet metal covering for each of the said siding panels, said metal coverings having their lower horizontal edges hooked in the recesses at the bottoms of the panels to form upwardly projecting spring members and having their upper horizontal edges pressed into the recesses at the tops of the panels, the lower portion of the siding panel in the course immediately above locking the top edge of the metal covering in the recess of the siding panel immediately below, and the lower edge of one sheet metal covering forming a spring pressure weather seal with the upper portion of the sheet metal covering of the course immediately below within the communicating pocket when hooked into the recess in the lower edge of the panel.

4. In a building siding in combination, a wall structure, a series of laterally extending insulating siding panels secured to said wall structure and lapped on each other in courses one above the other, said siding panels having an outwardly facing horizontal recess located above the lower edge of the lapof the panels with each other and a rearwardly facing horizontal recess at the lower edge of the panel, said recesses in the lapped panel-s forming a communicating pocket with each other, a sheet metal covering for each of said siding panels, said metal coverings having their lower horizontal edge folded inwardly to form a channel portion and having their top horizontal edge folded to form a substantially T shape, said metal covering having its lower channel shaped edge engaging with the bottom edge of the panel and having its top edge pressed into the recess at the top of the panel, the lower portion of the siding panel in the course immediately above indenting itself with the T head of the metal covering and locking said T on the recess `of the siding panel immediately below, and the lower edge of one sheet metal covering forming a spring pressure weather seal with the upper portion of the sheet metal covering of the course immediately below within the communicating pocket when its channel portion is engaged with the lower edge of the panel.

5. In a building siding in combination, a wall structure, a series of laterally extending insulating siding panels secured to said wall structure and lapped on each other in courses one above the other, said siding panels having an 4outwardly facing horizontal recess located above the lower edge of the lap of the panels with each other and a rearwardly facing horizontal recess at the lower edge of the panel, said recesses in the lapped panels forming a communicating pocket with each other, a sheet metal covering for each of said siding panels, said metal coverings having their lower horizontal edge folded inwardly to form a channel portion and having their top horizontal edge folded to form a T shape with the top member of the T being angled outwardly and downwardly, said metal covering having its lower channel shaped edge engaging with the bottom edge of the panel and having its top edge pressed into the recess at the top of the panel, the lower portion of the siding panel in the course immediately above identing with the T head of the metal covering and locking said T head on the recess of the siding panel immediately. below, and the lower edge of one sheet metal covering forming a spring pressure weather seal with the upper portion of the sheet metal covering of the course immediately below within the communicating pocket when its channel portion is engaged with the lower edge of the panel.

6. In a building siding as set forth in claim 5, in which the sheet metal covering is provided with an outwardly projecting horizontal ridge with which one leg of the channel portion of the metal covering in the next above course makes spring contact to make the weather seal.

7. In a building siding las set forth in claim 5, or 6, in which the inner leg of the channel portion of the sheet metal covering is curved to form a spring leg and its top edge is brought into contact with the under surface of the angled top member of the T head of the sheet metal covering 4of the course immediately below to form a spring contact weather seal.

8. In a building siding as set forth in claim 7, in which the folded T head of the sheet metal covering has its folded portions spaced apart for greater flexibility in iitting the sheet over the siding panel and to increase the applied spring pressure.

9. In a building siding in combination, a wall structure, a series of laterally extending insulating siding panels secured to said wall structure and lapped on each other in courses one above the other, said siding panels having an outwardly facing horizontal rece-ss located above the lower edge of the lap of the panels with each other and a rearwardly facing horizontal recess at the lower edge of the panel, said recesses in the lapped panels forming a communicating pocket with each other, a sheet metal covering for each of said siding panels, said metal coverings having their lower horizontal edge folded inwardly to form a channel portion and having their top horizontal edge folded to form a T shape with the front portion of the top member of the T shape being angled outwardly and downwardly' and the rear portion of the T shape being located in a plane spaced downwardly and parallel with the front portion, said folded portions being spaced apart from their adjacent parts to form a flexible spring along the top horizontal edge of the metal covering, an outwardly projecting horizontal ridge located immediately below said T head, said metal covering having its lower channel shaped edge engaging with the bottom edge of the panel and having its top edge in spring engagement in the recess at the top of the panel, the lower portion of the siding panel in the course immediately above indenting with the front portion of the T head of the metal covering and locking said T head in the recess of the siding panel immediately below and the lower edge of one sheet metal covering forming a spring pressure weather seal with said horizontal ridge and with the under surface of the front portion of the T head of the sheet metal covering of the course immediately below.

10. A sheet metal covering the lapped insulating siding panels comprising a rectangular sheet of light metal of considerable length and narrow width, said sheet having its horizontal bottom edge folded backwards and upwards to form a channel edge having a short vertical rear wall, a horizontal pressure ridge formed on the side of the sheet opposite to the said channel, said sheet above the said pressure ridge being rst folded forwardly, then backwardly and downwardly behind the sheet and then rearwardly to form a iiexible locking head for engagement with the siding panel on which it is to be mounted.

l1. A sheet metal covering for lapped insulating siding panels comprising a rectangular sheet of light metal of considerable length and narrow width, said sheet having its horizontal bottom edge folded backwards and upwards to form a channel edge of which the short rear leg is curved away from the sheet to form a spring pressure member, a horizontal pressure ridge formed on the side of the sheet opposite to the said channel, said pressure ridge combining with the curved leg of the bottom channel of an adjacent metal covering to provide a spring pressure weather seal between sheets, said sheet above the said pressure ridge being first folded forwardly, then backwardly and downwardly behind the sheet and then rearwardly to form a flexible locking head for engagement with the siding panel on which it is to be mounted.

l2. A surface covering member comprising an insulating panel member adapted to be overlapped at its top and bottom edges with similar panel members, said panel member having a horizontal slot cut on its rear face along the bottom edge of the panel and a horizontal slot cut along its front face down from the top edge of the panel to align with the bottom edge slot of a similar overlapped panel, and a light sheet metal covering for said panel, said sheet having its horizontal bottom edge folded backwards and upwards to form a channel engaging with the bottom edge of said panel, a horizontal pressure ridge formed on the front face `of the sheet metal covering located slightly below the line of the slot on the front face of the panel member, said metal sheet above said pressure ridge being first folded forwardly then backwardly and downwardly behind the sheet and then rearwardly to form a exible locking head engaging within the slot in the front face of said panel member and with the slotted bottom edge of a similar panel member when lapped over the top face of the panel and sheet metal covering.

Jenkins June 19, 1935 Ochs Dec. 2, 1941 

